A locality-aware overlay network for high performance computing, GTapestry, is proposed in this paper. GTapestry assembles physically neighboring nodes in the Internet into self-organized groups. The routing mechanism...
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Quality of Service (QoS) is necessary for service-oriented computing. Web services Agreement (WSA) aims at defining a language and a protocol for advertising the capabilities of providers, creating agreements based on...
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The research community has turned to create Semantic Overlay Networks for information retrieval in large scale peer-to-peer networks. Much research work in semantic overlay protocols and searching algorithms is done a...
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With the increasing popularity of mobile ad-hoc networks (MANETs), it becomes a challenge to integrate peer-to-peer (P2P) technique into MANETs efficiently. This paper proposes to integrate anycast routing technique t...
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A novel approach, based on the execution state of distributed programs, is proposed in this paper, called Aeneas. U is for the real-time performance analysis of distributed programs with reliability-constrains, In Aen...
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Multimedia streaming and video on demand (VoD) services are among those hottest applications over the Internet. Traditional client/server pattern is stumbled due to the lack of scalab.lity and limitation of service ca...
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ISBN:
(纸本)0780393112
Multimedia streaming and video on demand (VoD) services are among those hottest applications over the Internet. Traditional client/server pattern is stumbled due to the lack of scalab.lity and limitation of service capacity. Peer-to-Peer paradigm has been introduced to solve these issues. The key idea is that peers not only receive multimedia stream but also serve multimedia data to others. In this paper, we present a novel scheme that builds a multimedia streaming and caching service on a distributed hash table (DHT) based overlay. We adopt DHT to establish a decentralized caching service. The location information of cached segments is distributed among different peers and the information about segments from the same video is organized into an application-level multicast group. We also propose a cache replace algorithm on each peer. In our simulation, our design achieves good scalab.lity with a low service reject rate. Besides, good load balance is also achieved as well as desired quality-of-service.
A fundamental problem in peer-to-peer networks is how to locate appropriate peers efficiently to answer a specific query request. This paper proposes a model in which semantically similar peers form a semantic overlay...
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ISBN:
(纸本)1595931082
A fundamental problem in peer-to-peer networks is how to locate appropriate peers efficiently to answer a specific query request. This paper proposes a model in which semantically similar peers form a semantic overlay network and a query can be routed or forwarded to appropriate peers instead of broadcasting or random selection. We apply Latent Semantic Indexing (LSI) in information retrieval to reveal semantic subspaces of feature spaces from documents stored on peers. After producing semantic vectors through LSI, we train a support vector machine (SVM) to classify the peers into different categories based on the extracted vectors. Peers with close categories are defined as semantic similarity and form a semantic overlay. Experimental results show the model is efficient and performs better than other non-semantic retrieval models with respect to accuracy. In addition, our approach improves the recall rate nearly 100% while reducing message traffic dramatically compared with Gnutella. Copyright 2006 ACM.
Text-based image search engine and content-based image retrieval (CBIR) have achieved much progress in commercial and academic community respectively. However, few attempts have been conducted to integrate the two tec...
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In this paper, we present the design and implementation of Coordinated Intrusion Prevention system (CIPS), which includes Parallel Firewall (PFW), Flow Detection (FD) and Multiple Intrusion Detection system (MIDS) to ...
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Data grid is developed to facilitate sharing data and resources located in different parts of the world. The major barrier to support fast data access in a data grid is the high latency of wide area networks and the I...
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